Question

Решение задачи между собакой и кошкой 30 метров через сколько секунд собака догонит кошку если скорость собаки 10 метров секунду а скорость кошки 7 метров в секунду

Answer 1

10-7=3м/с-скорость сближения
30/3=10с-через столько 

Answer 2

Problem Statement

We have a dog and a cat. The dog's speed is 10 meters per second, and the cat's speed is 7 meters per second. The distance between them is 30 meters. We need to calculate how many seconds it will take for the dog to catch up to the cat.

Solution

To solve this problem, we can use the formula:

time = distance / speed

where: - time is the time it takes for the dog to catch up to the cat, - distance is the distance between the dog and the cat, and - speed is the relative speed of the dog with respect to the cat.

Substituting the given values into the formula, we have:

time = 30 meters / (10 meters/second - 7 meters/second)

Simplifying the expression inside the parentheses, we get:

time = 30 meters / 3 meters/second

Therefore, the dog will catch up to the cat in 10 seconds.